Miter-clamp.



G. R. REEVES.

MITER CLAMP. APPLICATION FILED MAR. 7. 1917- 2 SHEETSSHEET 1.

INVENTOR WITNESSES ATTORNEY G. R. REEVES.

MITER CLAMP.

APPLICATION FILED MAR. 1. 1917.

Patentd Nov. 13, 1917.

2 SHEETSS HEET 2.

INVENTOR WITNESSES ATTORNEY ail GEGRGE B. REEVES, OF OAK PARK,ILLI'IIQZS.

METER-CLAMP.

Application filed March 7, 1917.

citizen of the l'nitcd Stat s residing at Dal: Park, in the county ofCool: and State of lllinois, have invented new and useful Improvementsin Miterllainps' of which the following is a specification.

This invention roniprcheniils improvements in clamps and relates moreparticuarl to a miter clamp for use in securing are frame sections andanalogous sec- 1 gluing or nailing the same.

ol the objects oil the invention t.

a very simple and practical miter clamp whici will engage the n'iiteredends or two members and hold them in such fashion that the will notsplit when nailed to ctheri Another object of the invention is toprovide a niiterclainp having a. frame or base plate upon which is}slidahly mounted a clamping plate, the base plate being provided withflanges haying notches therein to permit nailing and the clamping placebeing formed in sections between which are secured holding; spurs.

The invention also aims to generally improve clamps of this nature torender hem more nractical, useful and commercially desirahle.

With these and'other objects in View as will become more apparent as thedescription proceeds, the invention consists in certain novel featuresof construction. combina- 2 is a side elevation of the clamp.

shape and which has secured to its upper cent one end, the triangularstop Each of the plates is formed Specification of Letters Patent.

Serial No. 153,627.

T and the two flanges converge toward the longitudinal center of theframe plate'and are disposed at right angles to each other. 71" 4 centerline of the frame plate forming a osed angle and each flange JS providedwith a transverse upwardly opening notch 5 for a purpose to hehereinafter n'ientioned.

Slii'lahly niounted upon the frame plate is i a clamping membergenerally designated 6 formed of the superposed plates 7, 8. Thetor-ward edges of these plates are convergent toward the longitudinalcenter of the frame screws connect the plates 7 and 8 and the rulerplate .10. These screws are threaded into the plates from the rear sideof the frame plate and in order to provide r sccess to said screws, theframe plate s TOl'ZTlQCl with the openings 11 which 3 registered withheads of the screws. .en'iovahly clamped between the plates 7 c 8 toproject beyond the forward edges 1 are a pair of spurs 12 and theopposed of plates are longitudinally recessed to provide sockets for theaccommospnrs being redation of the spurs.

ccived partly in each of the plates? and 8 will cooperaae with thescrews to hold the plates against relative rotational movement.

The damping" inemoeris actuated by a swivc ed at one end the alignplatea i provided upon other end with a ine his screw wo ks through athreaded sleeve l5 on the bracket 0 lted or otherwise secured to theframe plate 1.

operation, pa of frame sections are positioned in th clamp as shown in 1and then the clamp tightened to force the miter ends of the framesections into close engagement with each other. The spurs l2 engage theframe sections and Prevent an pOSSllHll y of slipping when nails orother suitable fasteners are driven into the 1 sections through thenotches Heretofore. much expense and trouble l'llS been caused by theends of the frame members splitting when secured by nails, and I preventthis splitting action hy having the flangesl form a closed angle. Shouldthe spurs become worn or bent, they may be easily removed 1.1%? innerends of the flanges meet at the by unscrewing the plates oi. theclampii.

memlier as will be readily understood.

From the foregoing description taken in connection with the accompanyingdrawings,

'it will be seen that l. have provided a very i wish to be limited tothis construction, but

may make such changes as will fall within the :scope and spirit of theinvention as claimed.

lVhat I claim is:--

1. A miter clamp comprising a frame plate, flanges on said frame plateforming a closed angle, a clamping member slidable on theframe plate,said clamping member being formed of two superposed plates,spursremovably secured between said plates and projecting beyond theforward edges thereof, each of the plates being formed with grooves. andthe grooves of one plate cooperating with the grooves of the other plateto form sockets for the spurs, and means for forcing the clamping memberto ward the flanges.

2.."1 miter clamp comprising a frame plate, flanges mounted on saidplate and converging toward the medial line thereot, said flanges beingdisposed at right angles to each other and meeting at their opposed endsto form a closed angle. the flanges being formed with upwardly openingnail slots, a clamping member slidable on said frame plate toward andaway from said flanges, said clamping member being formed of twosuperposed plates, spurs removably nae-ease secured between said platesand projecting beyond the forward edges thereof, each of the platesbeing formed with grooves, and the grooves of one plate cooperating withthe grooves of the other plate to form socketsgether and means formoving the clamping member longitudinally.

L. A miter clamp comprising a frame plate, flanges mounted, on saidplate at right angles therefrom, said flanges converging toward themedial line of the plate and forming a closed angle, the flanges beingprovided with nail slots, a clamping member slidable on said frame plateand comprising a pair of superposed plates, spurs ren'iovably fittedbetween said plates, each of the plates being formed with grooves andthe grooves of one plate cooperating with the grooves of the other plateto form sockets for the spurs, screws reniovably securing said lastmentioned plates to each other, the frame plate bein formed with openins with which said screws are adapted to register and means for movingthe clamping member longitu dinally.

In testimony whereof I aflix my signature.

GEORGE R. REEVES,

